Papers consist of diaries, documents, and photographs. Most of the diaries are from the post-war period; a few concern the 1917 Revolution and World War II. There are many photographs from the interwar Soviet Union, when Gavrilov lived in Stalingrad. Among the documents are Gavrilov's personal documents from the Soviet period, from the Second World War, and from the post-war years, when he was a displaced person in Germany.